Motion converting means



July 18, 1950 w. P. GLASER MOTION CONVERTING MEANS 6 Sheets-Sheet 1Filed Aug. 16, 1946,

In rent/1r WILL/14 P- 67.1455)? July 18, 1950 w. P. GLASER MOTIONCONVERTING MEANS 6 Sheets-Sheet 2 Filed Aug. 16, 1946 1950 w. P. GLASER2,515,342

MOTION CONVERTING MEANS Filed Aug. 1 6, 1946 6 Sheets-Sheet 5 49 lm'enmrWILL/All R GLASEA y 18, 1950 w. P. GLASER 5 3 MOTION CONVERTING MEANSFiled Aug. 16, 1946 6 Sheets-Sheet 4 y 1950 w. P. GLASER 2,515,342

MOTION CONVERTING MEANS Filed Aug. 16, 1946 6 Sheets-Sheet 5 43 Im'eulnr9; Wm MI! 2 62/1551? 6 @awour/ A II r e Juiy 18, 1950 w. P. GLASERMOTION CONVERTING MEANS 6 Sheets-Sheet 6 Filed Aug. l6,' 1946 InventorMUM/71 6119551? A rm rlleys Patented July 18, 1950 UNITED .STATESMPATENT OFFICE MOTION CONVERTING MEANS William P. Glaser; Waltham, Mass.

Application August 16, 1946, Serial No. 690,961

tlon to provide an engine especially adapted to f be embodied in a twocycle oil burning engine, which is equally well adapted for use in othertypes of engines employing reciprocating pistons.

Another object of the invention is to provide an engine having anendless cam groove to replace the conventional crankshaft and which isdriven by the reciprocating pistons and which in turn drivessaid pistonson the compression strokes thereof.

Another object of the invention is to provide an engine which willreduce to a minimum the friction, torque and stress inherent in allengines, utilizing reciprocating pistons.

Various other objects and advantages of the invention will hereinafterbecome more fully apparent from the following description of thedrawings, which illustrate a preferred embodiment thereof, wherein:

Figure 1 is a fragmentary, side elevational view, partly in longitudinalsection and partly broken away, of a portion of an engine constructed inaccordance with the invention;

Figures 2 and 3 are cross-sectional views thereof taken substantiallyalong planes indicated by the lines 2-2 and 3-3, respectively, of Figure1;

Figure 4 is an end view, partly in cross section thereof;

Figure 5 is a fragmentary side elevational view, partly broken away, ofthe intermediate portion of the engine;

Figures 6 and '7 are cross-sectional views taken substantially along theplanes indicated by the lines 6-6 and respectively, of Figure 1;

Figure 8 is a side elevational view, partly in section, of certain ofthe internal parts of the transmission of the engine;

Figure 9 is an end view thereof;

Figure 10 is a cross-sectional view of said transmission parts;

Figure 11 is a fragmentary plan view showing a portion of one of theconnecting rod guides;

Figure 12 is a longitudinal, substantially central sectional view of thecam drum and related parts;

Figure 13 is an end view in elevation, looking toward the right-hand endof Figure 12;

Figure 14 is a side elevational view of the'cam drum, and

2 Claims. (Cl. 7457 Figure 15 is an enlarged cross-sectional view,showing the antifriction connection between one of the connecting rodsand its guide rail.

Referring more specifically to the drawings, the improvedengine-designated generally IS, includes a transmission housing llhaving detachable end plates |8"which are definitely located withrespect thereto by means of locator pins I9.

Each of the end plates I8 is preferably provided with four cylinders 20,which are secured to and project from the outer side thereof and whichare arranged in circumferentially spaced relationship relatively toone'another. The cylinders 20 each contain a liner 2| having an innerend suitably secured in an opening 22 of its associated end plate l8, sothat the liners 2| open inders and liners 2| and 22, respectively, ofthe opposite end plate I8. Each of the cylinder liners 2| contains areciprocally mounted piston 23 having an inwardly extending connectingrod 24,

As best seen in Figures 1 and 3, housing I1 is provided with an inwardlyprojecting circumferentially extending portion 25 which is disposedintermediate of the ends thereof'and which provides a support forinternal locator plates or discs 26 which are detachably secured to theends thereof and which are definitely located with respect thereto bylocator pins 21. The locator plates 26 are provided with inwardlyoffset, centrally disposed bearing portions 28 for journaling endportions of a shaft 29, the ends of which project outwardlytherethrough. A

drum 30, as best seen in- Figure 14, is keyed to the intermediateportion of the shaft 29 and between the bearings 28 and is provided withan endless groove 3|, including opposite diagonal portions 32, whichextend substantially from end is loosely disposed to rotate with theshaft 29.

As seen in Figure 1, the-inwardly offset bearing portions 28 extend intothe ends of the bore 35 to support the guide block 34 therebetween andthe ends of the block 34,are' provided with recesses 36 to receivelocator pins 31, as seen'in through and the inner ends of whichbearagainst I the outer edges of guide rails 43, two of which aredisposed against each side of the'block fi l and lengthwise thereof. Theguide rails 43 each extend substantially the length -o'f'th'e block 34"and are provided with inwardly openin'g,--substantially V-shaped grooves44 formed in the inner edges thereoi. A- connecting bar 45 -is slideablydisposed between 'each pair; of opposed rails 43 and said connectingbars I 45-are proe vided with V-shaped, longitudinally extending grooves46 in the side-edgesfthereof'and which open into the grooves.The-opposed grooves 4 4 and 4 6 contain antifriction bearingmeansineluding a plurality of ball bearings' l'l "which are contained-inanapertured-plate or strip 48 which functions to properly: spaceftheball bearings 4l with the-individual-ball bearingslocatedin individualspaced apertures -of the strip or plate 48. The'slide-bars45 areconnectedat their ends by fastenin-gs 49 -tothe-inner-ends of the pistonrods 24; each of said rods 45 being connectedto the adjacent ends faligned connecting rods'24. As best seen in Figure-10, theguideblock-34is; provided-with a longitudinal slot fl in each side thereof and whichopens into the bore- 35. The slots 50 are normally coveredby theconnecting bars'45, each of which is provided-w'ith an opening5l, asbest seen in Figure 8, for detachably receiving a push pin assembly,designated generally 52, and best illustrated in'Figure 10. Each pushpin assembly-52 includes a sleeve; 53 disposed in the opening 5| and;having a'headed outer end 54 bearing against the outer side-of theconnecting bar 45 thereof and-detachably secured thereto by fastenings55. A bolt or headed pin 55 extends longitudinally through the;s1eeve 53and-is provided with a -pair of lock nuts 51= n the outer'end thereo fengaging the outer;end of the sleeve 53. Ataperedlroller 58 is journaledon the inner end of the bo1t-55,'fbetween its head and the-inner end ofthe sleeve'53 and isdisposed-for movement in the-pam groove 3|.Asseen-in Figures 1 and'l, the lo'caton plates'ZB-are provided with;circumferentially v spaced openings 59 through which the connectingbarsextend and in which saidbars are reciprocally disposed. v

A gear 60 is keyed to one-end of the shaft 29and meshes with a pinion6|; The gear 60 and pinion 61- are located betweenonelocator plate 26and the end plate I8 adjacent thereto and 'thepinion (H is keyed to theone end of a shaft (it-which is journaled in bearing portion 63 ofsaid-locator plate 26, as best seen'in Figural. The opposite end of theshaft 62 carries a beveled gear 64, which is keyed thereto, and which'meshes with a beveled pinion 65 which is keyed to the inner' end'of adriven -shaft66 which is journaled in a bearing sleeve or housing-61.The-inner,-bel1- shaped end 68 of the housing 61 is fixedly securedin arecessed portion: 69 of an opening!!! in the housing IT, in which theinner 'end'of the shaft 65- and the beveled pinion 65 are disposed. The

driven shaft 66 is adapted to be connected to the driven axle of avehicle on which the engine I6 is mounted or to any other means, notshown, which is adapted to be actuated by the engine [6. Likewise,suitable means for varying the driving ratio between the shaft 28 andthe part or parts driven by the shaft 66 may be provided.

As illustrated in the drawings and as previously described, each of theend plates l8 supports four-pistons and cylinders and the alignedpistons are connected by connecting bars 45. Each 0f the four connectingbars 45 is provided with rection--asiridicated by the arrows H in Figure3 Or in a clockwise direction, looking from right to "left of Figure 1;Suitable means is provided in theremote ends of the cylinders 20 orliners 2| for admitting an explosive charge thereto, for ignitingttheexplosive charge andfor exhausting the-products ofcomb'ustionthereffoin,as tl ie said pistons 23 move toward thelh'ousing- ['1' on'their powerstrokes and away from 'the housing ll'on their compression strokes.v'[nk'ew-is'e,"itwill-b'e readily apparent that whnbne of a pair ofpistons'23 is moving toward the housing-T l1} on its power strokefor'rotatirig the c'amdruin '3llfthe. other aligned piston 2 3Twi1l"bemdi ir'igiifl the 613- posite direction on its'cdfnpfession'sti'oke.ItWill likewise be readily apparent that the pistons 23 Will be disposedat d lfferiitpoiritsof movement with respect'to their'c'ylindrsran'd'liners" soithat certain -of the 'pistons'will"be' coihinencingtheir power strokes as otherioi 'thepistons' are at midpoints of theirpower strokes or completing. their power strokes or beginning,completing'o'r at'midpoints 'eftheir'cen pr'ession strokes. "Itfw'illthus be readily apparent: that "a plurality of pistons 23 areatallt'iniesactively functioning 'torevolve the cam drum so w'hien' inturn rev61ves"the"'shait 29 "for rotating the u'r-ive'n snan 6'6 'through"the gears 50, 'p'ihions'tl, intermediate shafts "52, beveled gears andbeveled'inimon t5.

The engine l 6' 'isprferably.. provided with a lever. 12, as seen inFigure ljwhichis engaged by-or'ie of thep'ush 'r cidu'fiits' ilaridWhichmay be utilized to actliatefs iitable niechanism,$not shown, 'forregulatingv the timing" of the ignition system "of' the"eng'ine'lfi, aswell as the' valve means n for admitting. thefuel charges tothecylinders and for releasing the exhaust gases therefrom. "Thecylindrical housing portion I1 is preferably provided with openingsthrough which the push rod'unit5Tniay be removed and replaced withoutotherwise disassembling the machine -IS.

It-w'ill be readily'ahpariehfithatlone-group of the cylinders 28,l'inersfi'l, and." pistons"23; -attached to one of theend.plateslliQcould,be dispensed with and'i'the" oth'er' cylinders" and; pistonscould then be'iiiade"ofthedouble acting type to operate on a powerIstr'oke in each direction. Suitable clutch means, notshown could'thenbe mounted'oii "the end plate 'I 8','n'ot utilized for. supporting thecylindersarid pistonsf to thus eliminate all-complicated'gean drives.

Various other modifications and ohanges are longitudinally alignedrelationshipspistonareciprocally disposed in said cylinders, connecting,

bars connecting the pistons of aligned cylinders and extendingtherebetween, a cam drum rotatively disposed between the adjacent endsof said cylinders, a guide block in which the cam drum is rotativelymounted, said connecting bars slideably engaging the sides of the guideblock, said guide block having longitudinal slots in communication withsaid cam drum and over which said connecting bars are reciprocallydisposed, said cam drum being provided with an endless undulating camegroove, push pins mounted on said connecting bars and extending throughsaid slots for slideably engaging the cam groove for rotating the camdrum when the connecting bars are reciprocated by the movement of saidpistons, a housing enclosing said cam drum and guide block, locatorplates detachably mounted in said housing and provided with bearings forjournaling the cam drum shaft and having inwardly extending projectionsextending into the ends of the guide block for supporting the guideblock and cam drum within said housing.

2. In an engine provided with reciprocating pistons, a housing having anend wall provided with a plurality of cylinders projecting outwardlytherefrom and opening into said housing, pistons reciprocally disposedin said cylinders, a guide block detachably supported in said housingand provided with a central bore extending therethrough and a pluralityof longitudinal slots communicating with said bore and opening outwardlythereof, a cam drum rotatively mounted in said guide block bore andprovided with an endless undulating cam groove, connecting rodsprojecting from said pistons and slideably engaging the outer sides ofthe guide block and disposed over the longitudinal slots thereof, a pushrod extending laterally through each connecting rod and slideablydisposed in the slot over which its connecting rod is disposed forslideably engaging the cam groove, and a shaft keyed to said cam drumand rotated thereby when the cam drum is revolved by a reciprocation ofthe pistons and the connecting rods, locator plates detachably mountedin the housing for detachably supporting the guide block and forjournaling said shaft, a driven shaft having one end journaled in thehousing and disposed at a right angle to the first mentioned shaft, anddriving means disposed in the housing and connecting the shafts.

WILLIAM P. GLASER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,261,111 Fasey et a1 .Apr. 2,1918 1,736,507 Peterson Nov. 19, 1929 2,216,990 Taylor Oct. 8, 19402,256,601 West Sept. 23, 1941

